TY - JOUR
T1 - Innovative performance evaluation and process simulation of a 550 MW staged, pressurized oxy-biomass combustion power plant for negative carbon emissions
AU - Li, Xiangdong
AU - Lin, Hui
AU - Wang, Guan
AU - Dai, Gaofeng
AU - Chen, Yongqiang
AU - Luo, Yong
AU - Liu, Bin
AU - Zhang, Jiaye
AU - Axelbaum, Richard L.
AU - Wang, Xuebin
N1 - Publisher Copyright:
© 2025 Elsevier Ltd
PY - 2026/1/1
Y1 - 2026/1/1
N2 - Bioenergy with carbon capture and storage (BECCS) technology is crucial for improving carbon capture efficiency but faces challenges due to high electricity costs. Staged, pressurized oxy-combustion addresses this by efficiently recovering latent heat from flue gas within the steam Rankine cycle, improving net plant efficiency in power plants. Integrating biomass with this technology holds promise for reducing fossil fuel consumption and achieving negative carbon emissions. However, the performance of staged pressurized oxy-biomass combustion (Bio-SPOC) has not been studied yet. This study used ASPEN Plus to analyze the performance of a 550 MW staged, pressurized oxy-biomass combustion power plant. The results indicate that air separation unit (ASU) is the main energy consumption unit. As pressure increases, net plant efficiency (NPE) increases firstly and then drops, with the maximum of 38.03 % (LHV) at 1 MPa. When O2 concentration in flue gas reduces from 3 % to 1 % NPE increases from 37.82 % (LHV) to 38.42 % (LHV). The NPE of Bio-SPOC is 4.26 % higher than that of coal. This improvement is mainly due to the higher moisture in Bio-SPOC flue gas, allowing for more latent heat recovery. Additionally, biomass has a higher oxygen content, resulting in lower ASU energy consumption. These findings provide technical support for the promotion and application of Bio-SPOC technology.
AB - Bioenergy with carbon capture and storage (BECCS) technology is crucial for improving carbon capture efficiency but faces challenges due to high electricity costs. Staged, pressurized oxy-combustion addresses this by efficiently recovering latent heat from flue gas within the steam Rankine cycle, improving net plant efficiency in power plants. Integrating biomass with this technology holds promise for reducing fossil fuel consumption and achieving negative carbon emissions. However, the performance of staged pressurized oxy-biomass combustion (Bio-SPOC) has not been studied yet. This study used ASPEN Plus to analyze the performance of a 550 MW staged, pressurized oxy-biomass combustion power plant. The results indicate that air separation unit (ASU) is the main energy consumption unit. As pressure increases, net plant efficiency (NPE) increases firstly and then drops, with the maximum of 38.03 % (LHV) at 1 MPa. When O2 concentration in flue gas reduces from 3 % to 1 % NPE increases from 37.82 % (LHV) to 38.42 % (LHV). The NPE of Bio-SPOC is 4.26 % higher than that of coal. This improvement is mainly due to the higher moisture in Bio-SPOC flue gas, allowing for more latent heat recovery. Additionally, biomass has a higher oxygen content, resulting in lower ASU energy consumption. These findings provide technical support for the promotion and application of Bio-SPOC technology.
KW - ASPEN modeling
KW - BECCS
KW - Biomass
KW - Pressurized oxy-combustion
UR - https://www.scopus.com/pages/publications/105017126973
U2 - 10.1016/j.renene.2025.124534
DO - 10.1016/j.renene.2025.124534
M3 - Article
AN - SCOPUS:105017126973
SN - 0960-1481
VL - 256
JO - Renewable Energy
JF - Renewable Energy
M1 - 124534
ER -